CN207866269U - A kind of fibre optical sensor - Google Patents
A kind of fibre optical sensor Download PDFInfo
- Publication number
- CN207866269U CN207866269U CN201721857011.7U CN201721857011U CN207866269U CN 207866269 U CN207866269 U CN 207866269U CN 201721857011 U CN201721857011 U CN 201721857011U CN 207866269 U CN207866269 U CN 207866269U
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- China
- Prior art keywords
- optical
- switch module
- optical signal
- detecting head
- switching circuit
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- 230000003287 optical effect Effects 0.000 title claims abstract description 84
- 239000000835 fiber Substances 0.000 title claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 239000013307 optical fiber Substances 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005622 photoelectricity Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a kind of fibre optical sensors, including light source, detecting head, optical switch module, optical signal receiver, photoelectric switching circuit and electric signal processor, the detecting head is connect with light source and optical switch module respectively by optical fiber, the optical switch module is connect with optical signal receiver, the optical signal receiver is connect with photoelectric switching circuit, the photoelectric switching circuit is connect with electric signal processor, it is connected to optical signal receiver by the way that the control foot of optical switch module is placed in different optical signal importing ports, different types of sensing membrane filters out the light of specific wavelength in optical signal receiver, reach photoelectric switching circuit, the variation of optical wavelength is obtained through electric signal processor analysis again, and then judge the measured variation of surveyed environmental correclation.The utility model is simple in structure, by a detecting head can detect it is multiple be measured, it is convenient and practical, while analyzing related data without increasing multiple electric signal processors, production cost is greatly saved.
Description
Technical field
The utility model belongs to sensor field, more particularly to a kind of fibre optical sensor.
Background technology
Sensor is a kind of detection device, can experience measured information, and the information that can will be experienced, by a set pattern
Rule is for conversion into the information output of electric signal or other required forms, to meet the transmission of information, processing, storage, display, record
With control etc. requirements.
With the continuous development of sensor, fibre optical sensor also comes into being, can be with due to fibre optical sensor high sensitivity
For high pressure, electrical noise, high temperature, burn into or other adverse circumstances, therefore increasingly by the pro-gaze of all trades and professions, but
Single one physical amount can only be measured mostly by being existing sensor, when measuring a variety of physical quantitys, need to increase corresponding optical signal processor
Etc. equipment, be unfavorable on a large scale produce and use, therefore how to solve the problems, such as this become research fibre optical sensor fining,
The important topic of dexterityization.
Utility model content
The purpose of this utility model is just to provide a kind of fibre optical sensor, can be fully solved above-mentioned the deficiencies in the prior art it
Place.
The purpose of this utility model is realized by following technical proposals：
A kind of fibre optical sensor, including light source, detecting head, optical switch module, optical signal receiver, photoelectric switching circuit and
Electric signal processor, the light source are connect by incident optical with detecting head, and detecting head passes through mirror based fiber optica and optical switch module
Connection, the optical switch module import port and optical signal receiver company by the way that the control foot of itself is placed in different optical signals
It connects, optical signal receiver is built-in with different types of sensing membrane, and the optical signal receiver passes through optical fiber and photoelectric switching circuit
Connection, photoelectric switching circuit are electrically connected with electric signal processor.
Preferably, the detecting head is built-in with light-sensitive element.
Using above-mentioned design scheme, detecting head can sensitively perceive the minor change of surveyed environment, improve the essence of measurement
Exactness.
Preferably, the photoelectric switching circuit is connected to PIN photodiodes.
Using above-mentioned design scheme, PIN photodiodes can effectively convert optical signals to electric signal.
Preferably, the optical switch module is electric control optical switch.
Using above-mentioned design scheme, light signal output end mouth can be switched in the control foot by changing optical switch module believes with light
The connection relation of number input port.
Compared with prior art, the beneficial effects of the utility model are：
The utility model is simple in structure, by a detecting head can detect it is multiple be measured, it is convenient and practical, analyze simultaneously
Production cost is greatly saved without increasing multiple electric signal processors in related data.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Specific implementation mode
The utility model is further described with reference to specific embodiments and the drawings.
A kind of fibre optical sensor, including light source 1, detecting head 3, optical switch module 6, optical signal receiver 12, opto-electronic conversion
Circuit 13 and electric signal processor 15, the light source 1 are connect by incident optical 2 with detecting head 3, and detecting head 3 passes through reflected light
Fibre 5 is connect with optical switch module 6, and the optical switch module 6 includes control foot 7, and the optical signal receiver 12 includes the first light
Signal imports port, the second optical signal imports port, third optical signal imports port, pressure sensing membrane, temperature sensing film and wet
Sensing membrane is spent, first optical signal imports port and connect with pressure sensing membrane, and the second optical signal imports port and temperature sensing
Film connects, and third optical signal imports port and connect with humidity sensor film, and the control foot 7 of the optical switch module 6 can pass through respectively
First optical signal imports port 8 and is connect with the pressure sensing membrane 11 built in optical signal receiver 12, and the second optical signal imports port 9
It is connect with the temperature sensing film 16 built in optical signal receiver 12, third optical signal imports in port 10 and optical signal receiver 12
The humidity sensor film 17 set connects, and the optical signal receiver 12 is connect by optical fiber with photoelectric switching circuit 13, opto-electronic conversion
Circuit 13 is electrically connected with electric signal processor 15.
The detecting head 1 is built-in with light-sensitive element 4, and detecting head 1 is small, places it in test environment, can be sensitive
Sense the variation of pressure, temperature and humidity in environment.
PIN photodiodes 14 are connected in the photoelectric switching circuit 13, the optical module switch is electric control optical switch.
At work, detecting head 3 is placed in test environment, light source 1 sends out optical signal and reflexes to detecting head through incident optical 2
3, when test environment pressure, temperature, humidity residing for the detecting head 3 change, optical signal can be influenced by local environment, be led
Cause wavelength that corresponding variation, even the light-sensitive element 4 that subtle environmental change can be also detected in first 3 is perceived, light occurs
Signal changes by test environment postwave length, and the optical signal after variation reaches optical switch module 6 through mirror based fiber optica 5, and light is opened
It includes control foot 7 to close module 6, and control foot 7 imports the pressure built in the connection of port 8 optical signal receiver 12 by the first optical signal
Power sensing membrane 11 imports the temperature sensor 16 built in the connection of port 9 optical signal receiver 12 by the second optical signal or passes through
Third optical signal imports the humidity sensor 17 built in the connection of port 10 optical signal receiver 12, extremely by the optical signal transmission surveyed
Different type sensing membrane, different sensing membranes can only be by the light of respective wavelength, and then filters out the spy formed under varying environment
The optical signal of standing wave length, the optical signal filtered out reach photoelectric switching circuit 13, the PIN in photoelectric switching circuit 13 through optical fiber again
Photodiode 14 can effectively convert optical signals to electric signal and reach electric signal processor 15 through conducting wire, through Electric signal processing
Device 15 handles post analysis and obtains environmental pressure, temperature, the situation of change of humidity.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (4)
1. a kind of fibre optical sensor, it is characterised in that：Including light source, detecting head, optical switch module, optical signal receiver, photoelectricity
Conversion circuit and electric signal processor, the light source are connect by incident optical with detecting head, detecting head by mirror based fiber optica with
Optical switch module connects, and the optical switch module imports port and light letter by the way that the control foot of itself is placed in different optical signals
The connection of number receiver, optical signal receiver are built-in with the sensing membrane of multiple and different types, and the optical signal receiver passes through optical fiber
It is connect with photoelectric switching circuit, photoelectric switching circuit is electrically connected with electric signal processor.
2. a kind of fibre optical sensor according to claim 1, it is characterised in that：The detecting head is built-in with light-sensitive element.
3. a kind of fibre optical sensor according to claim 1, it is characterised in that：It is connected to PIN in the photoelectric switching circuit
Photodiode.
4. a kind of fibre optical sensor according to claim 1, it is characterised in that：The optical switch module is that automatically controlled light is opened
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721857011.7U CN207866269U (en) | 2017-12-26 | 2017-12-26 | A kind of fibre optical sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721857011.7U CN207866269U (en) | 2017-12-26 | 2017-12-26 | A kind of fibre optical sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866269U true CN207866269U (en) | 2018-09-14 |
Family
ID=63466830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721857011.7U Expired - Fee Related CN207866269U (en) | 2017-12-26 | 2017-12-26 | A kind of fibre optical sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303135A (en) * | 2017-12-26 | 2018-07-20 | 成都鼎信致远科技有限公司 | A kind of novel sensor |
-
2017
- 2017-12-26 CN CN201721857011.7U patent/CN207866269U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303135A (en) * | 2017-12-26 | 2018-07-20 | 成都鼎信致远科技有限公司 | A kind of novel sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 |